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- [6] SOMATIC EMBRYOGENESIS AND PLANTLET REGENERATION FROM CULTURED SHOOTS AND COTYLEDONS OF SEEDLINGS FROM STORED SEEDS OF BLACK AND WHITE SPRUCE (PICEA-MARIANA AND PICEA-GLAUCA) CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1990, 68 (01): : 30 - 34